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Questions  

The second's pendulum is taken from earth to moon, to keep the time period constant

a
the length of the second's pendulum should be decreased
b
the length of the second's pendulum should be increased
c
the amplitude should increase
d
the amplitude should decrease

detailed solution

Correct option is A

gmon=gearth 6=g6⇒T=constantl should be made l6 at moon because T=2πlg=2πl/6g/6

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